Grate



March 10, 1931. v. J. s-NYDER GRATE Filed Aug. 8, 1928 2 Z JT. F 5

/N VEN TOR Vern/'e J nydef' Y ATroR/vEY lation.

VERNIE J. SNYDER, OF

'EES

ALBANY, NEW YORK, iissieivoit or cnn-HALF To `.Eniifinivn c.

nniias'rYnn, OFALBANY, NEW YORK GRATE u Application led'August 8, 1928i.lSerial No. 298,326.

My invention relates to grates for furf a a naces and the like andparticularly to a de vice of this character comprising a mini muninumber of standardized parts which may be assembled to forma grateof-substantially any desired size.

rlhe objects of my invention are to pro vide a grate of extremely simplecharacter which may be readily adjusted to fit any furnace; which may bereadily assembled and taken apart without the use of tools; and in whichthe separate elements thereof will, when assembled in place in thefurnace, coact-,to lmaintain the whole in assembled re# With theseobjects in view my invention includes the novel elements andcombinations and arrangements of elements described below andillustrated in f the accompanying 0 drawings in which,-

Fig. 1 is an elevation View of a rocker or grate-supporting bar;

Fig. 2 is a sectionV of Fig. 1 in the plane i 'y Fig. 3 is a section ofFig. 1 in the plane p'. 4 is a plan view of Fig. 1;

Fig. 5 is a plan view of one transverse section of my grate showing therocker or suph porting bar with the grate element-s asseinbled thereonFig. 6 is an enlarged section of Fig. 5 in the plane 6 6 showing how thetwo portions of the rocker bar iiiteriit and how they are held ininterfitting relation by the grate elements saddled thereon.

Fig. 7 is similar, to Fig. v6 and is a section in the plane 7--7 of Fig.5 g

Fig. 8 is an endview of one ofthe grate elements; and

Fig. 9 is a side view showing five grate sections journaled in the sidesupport, and the means for shaking the grate;

Referring to the drawings, my grate oom-A prises a rocker barrepresented generally by the numeral, 1, andl which comprises theseparate portions, 2 and 3. Portion 2, co1nprises the generallyrectangular bar, 4, cast integral with the end element, 5, which carriesthe rocker shaft, 6. Portion 2, is prof `lorace the ysides' of bar, 1.

2 and 3, of the har, 1, overlap, the depending vided with a projection,.7, on theA side there- ,ofwhich'is adapted to -interi'it with a recess,8, provided in the side ofthe portion, 3. l The portion, 3, comprisesthe generally rectanguy iar bar, 9, cast integral with the end element,

l 10, which latter is quite similar to element,

5,l lexcept that it is provided with a comparatively long dependingportion, 11, to which a shaking bar, 12, (see Fig. 9) may he attached."When the portions, 2 andV 3, are placed together in interlittingrelation, as

shown inFigs. 4C and 6, the rocker-shaft, 6, von end element, 5, isaligned with rocker shaft, 13, on end element, 10.

The bar, 1, serves as a ksupport for the separate grate elements, 11i,which are simply.` saddled thereover. These elements are preferably castin the forni shown in Figs. 5, 6, 7 andrS. The fuel supporting surfacesare preferably butvnot necessarily arcuate and may beprovided onthesides with teeth or ei'rations, 15as illustrated'. 1 These grateelements haveeomparatively heavy dependingportions, 16, which aredesigned to em- N here thevportions,

portions, 16.v are so spaced that the grateelenient will pist slip overthe bar and hold the interlitting portions, 2 and 3, in closelylassembled relation as shown in Fig. 6. o Over those portions of thebar, 1, which are, so to speak, of single thickness, one of theportions, 17, depending` froin'the grate elements ris slightlyy'increased in lthickness, as shown in Fig. 7, so that itfis adapted` toclosely embrace tlieiside, for example,of portion, 2, fof the bar, 1.

iilthough no means for locking the grate elements on the rocker bar isnecessary, the depending portions, 16,y may be provided with an opening,18, through which a Cotter pin, 19, may be inserted as shownin Fig. 6.The transverse thickness, 20, (see Fig. 8),of the portions, 16, mayvary, depending upon the spacing desired and which will be best adaptedfor the particular sizes of fuel to be burned.A Likewise, the

' length of these elements may vary and preferably should vloe such thatthe center vof gravity of the grate sectionsis substantially-below theaxis of the rocker shafts, 6 and. 1.13,

so that the normal position of the depending portions, 16, Will bevertical.

In assembling my grate in the furnace, the rocker shafts are separatelyinsertedin the side supports, 2l, and the portions, 2 and 3, are theninterlitted. TNhen in this position, i single grate element slipped overthe central portion ot the rocker bar, l, Where the portions, 2 and 3,overlap, Will temporarily hold the rocker bar in place. The other grateelements may then be saddled over the rocker bar, and when the entirebar is illed the shafts, 6 and 13, will be held in the side supports andcannot be Withdrawn Without removing one or more of the grate elementsso that the bar, 1, is shortened. Vhen it is desired to remove a gratesection from the furnace, all that is necessary is to remove one or tvfoof the grate elements at eitherl end of the rocker bar so that the barmay be slightly shortened and one shalt thus Withdrawn from its bearingin `the side supports. Should any one` of the grate elements becomeburned or otherwise damaged, it is only necessary to lift it ofi therocker bar and replace it With a new one.

From Vthe foregoing it will be apparent that my grate sections may beadjusted to tit any side support spacing Whatever by simgly pullingtheend elements, and 10, out to the proper distance, inserting the shafts,(5 and 13, in the side supports and locking the section in place byassembling the grate elements on the rocker bar.

While l have described my invention somewhat in detail for the purposeof clearness it is to be understood that the Words which l have used areWords of description rather than of limitation and that changes Withinthe purview of the appended claims may be made Without departing fromthe true scope and spirit of my invention.

What l claim isl. ln a grate7 the combination With a rocker barcomprising tivo slidably intertitting` portions adapting said bar to belengthened or shortened, of a plurality of grate elements saddledthereon; some ci said elements closely engaging` both said portions andpreventing lateral separation thereof.

2. In a grate, the combination with a rocker bar comprising tivoslidably interiitting' portions adapting said bar to be lengthened orshortened, of a 1plurality of grate elements saddled thereon; some ofsaid elements close- Y ly engaging one of said portions and preventingthe shortening of said bar While said portions are interlitted.

3. In a grate, the combination With a rocker bar comprising tWo slidablyinteriitting `portions adapting said bar to be lengthened or shortened,of a plurality of grate elements saddled thereon; some of said elementsclosely engaging both of said portions and preventing lateral separationthereof, and

.forming a `said portions and preventing the shortening` of said bar.

l. ln a grate, the combination With side supports, or" a transverserocker bar journaled therein and comprising tWo sections relativelymovable longitudinally, a plurality of separate grate elements saddledthereover and coacting directly therewith, said grate elementslocking`said rocker bar in assembled, journaled position, and said grateelements being` located adjacent to each other and forming a seriessubstantially co-extensive with the Width of the grate.

5. 1n a grate, the combination With a roclrer bar comprising twoelements provided with complenientaryV interlitting portions relativelymovable longitudinally, of a plurality of separate grate elementssaddled thereon and securing said roclrer bar elements in interi'ittedrelation, and said grate elements being located adjacent to each otherseries substantially co-extensive with the Width of the grate.

6. 1n agrate, the combination With anextensible rocher bar comprisingseparate elements provided on the sides thereof With complementaryintertitting,l portions, of a plurality of separate elements forming thesuriace of the grate, and saddled over and closely embracing` saidrocker bar throughout its extent to secure the Whole. in assembledrelation.

VERNE J. SNYDER.

